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Deposition of silica in hydrometallurgical processes / Отложение кремния в гидрометаллургических процессах / Taloženje silicijum-dioksida u hidrometalurškim procesima [PDF]

Vojnotehnički Glasnik, 2020
Introduction/purpose: Dissolution of nonferrous metals from oxidic ores such as laterite, high silicon bauxite and eudialyte during acidic treatment was connected with silica gel formation.
Srećko R. Stopić, Bernd G. Friedrich
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The production of novolac oligomers

Chimica Techno Acta, 2016
The paper presents the improvement of production technology of novolac phenol-formaldehyde oligo-mers by introducing the new scheme of capture of exhaust gases due to waste production, which leads to a reduction of costs and increase economic efficiency.
A. N. Galushchinsky, K. L. Obydennov
doaj   +1 more source